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                <h1 class="article-title" itemprop="name">Data Files</h1>
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                <p>Sometimes you may need to use some data in templates which is not directly available in your posts, or you want to reuse the data elsewhere. For such use cases, Hexo 3 introduced the new <strong>Data files</strong>. This feature loads YAML or JSON files in <code>source/_data</code> folder so you can use them in your site.</p>
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<p>For example, add <code>menu.yml</code> in <code>source/_data</code> folder.</p>
<figure class="highlight yaml"><table><tr><td class="code"><pre><span class="line"><span class="attr">Home:</span> <span class="string">/</span></span><br><span class="line"><span class="attr">Gallery:</span> <span class="string">/gallery/</span></span><br><span class="line"><span class="attr">Archives:</span> <span class="string">/archives/</span></span><br></pre></td></tr></table></figure>
<p>And you can use them in templates:</p>
<figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">&lt;% for (var link in site.data.menu) &#123; %&gt;</span><br><span class="line">  &lt;a href=&quot;&lt;%= site.data.menu[link] %&gt;&quot;&gt; &lt;%= link %&gt; &lt;/a&gt;</span><br><span class="line">&lt;% &#125; %&gt;</span><br></pre></td></tr></table></figure>
<p>render like this :</p>
<figure class="highlight plain"><table><tr><td class="code"><pre><span class="line">&lt;a href=&quot;/&quot;&gt; Home &lt;/a&gt;</span><br><span class="line">&lt;a href=&quot;/gallery/&quot;&gt; Gallery &lt;/a&gt;</span><br><span class="line">&lt;a href=&quot;/archives/&quot;&gt; Archives &lt;/a&gt;</span><br></pre></td></tr></table></figure>
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